General physiology; an outline of the science of life . till, as formerly, brought in by thestream of matter, and can attach themselves to the others as thepeculiar quality of each one demands. But if the metabolism has THE MECHANISM OF LIFE 543 been irremediably injured in the division, regeneration is nolonger possible, because the necessary molecules and atoms arcno longer produced and brought to the necessary place. Henceit is a universal and fundamental fact that non-nucleated pieces ofa cell, , pieces into which a fatal disturbance of metabolism hascome, do not regenerate lost parts,
General physiology; an outline of the science of life . till, as formerly, brought in by thestream of matter, and can attach themselves to the others as thepeculiar quality of each one demands. But if the metabolism has THE MECHANISM OF LIFE 543 been irremediably injured in the division, regeneration is nolonger possible, because the necessary molecules and atoms arcno longer produced and brought to the necessary place. Henceit is a universal and fundamental fact that non-nucleated pieces ofa cell, , pieces into which a fatal disturbance of metabolism hascome, do not regenerate lost parts, although under certain circum-stances they are able to live for days. One phenomenon, which some years ago appeared very puzzling,is approximately explained by the fact of structures in the cell-protoplasm. This is the formation of very regular silicious andcalcareous skeletons, especially in the delicate Radiolaria, Foramini-fera, and sponges. F. E. Schulze, (87) called attention to thefact that the formation of triradiate and quadriradiate spicules.
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Keywords: ., bookcentury1800, bookdecade1890, bookidgen, booksubjectphysiology
